Can't control CPS and CSD pins of the SKY66112-11 FEM

Question

Dear Sir/Madam,

I am trying to enable FEM support on zigbee/light bulb, and want to SKY66112-11 FEM working on Receive bypass mode. I set all pins at proper setting at initialzation state but I found all pins always at low level state and I can't change them.

dts:

nrf_radio_fem: fem_skyworks_node {
compatible = "skyworks,sky66112-11", "generic-fem-two-ctrl-pins";

ctx-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
ctx-settle-time-us = <1>;
crx-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
crx-settle-time-us = <1>;
csd-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>; /* crx and csd connect together */
cps-gpios = <&gpio0 10 GPIO_ACTIVE_HIGH>;
ant-sel-gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>;

rx-gain-db = <11>;
tx-gain-db = <22>;
};

&radio {
status = "okay";
fem = <&nrf_radio_fem>;
};

Initialzation Code:

#if DT_NODE_HAS_PROP(DT_NODELABEL(nrf_radio_fem), ant_sel_gpios)

/* Configure ant_sel_gpios pin as active. */

err = gpio_pin_configure(

DEVICE_DT_GET(DT_GPIO_CTLR(DT_NODELABEL(nrf_radio_fem), ant_sel_gpios)),

DT_GPIO_PIN(DT_NODELABEL(nrf_radio_fem), ant_sel_gpios),

GPIO_OUTPUT_ACTIVE |

DT_GPIO_FLAGS(DT_NODELABEL(nrf_radio_fem), ant_sel_gpios));

LOG_DBG("Configure ant_sel_gpios pin as active.");

if (err) {

return err;

}

#endif

#if DT_NODE_HAS_PROP(DT_NODELABEL(nrf_radio_fem), csd_gpios)

/* Configure csd_gpios pin as active. */

err = gpio_pin_configure(

DEVICE_DT_GET(DT_GPIO_CTLR(DT_NODELABEL(nrf_radio_fem), csd_gpios)),

DT_GPIO_PIN(DT_NODELABEL(nrf_radio_fem), csd_gpios),

GPIO_OUTPUT_ACTIVE |

DT_GPIO_FLAGS(DT_NODELABEL(nrf_radio_fem), csd_gpios));

LOG_DBG("Configure csd_gpios pin as active.");

if (err) {

return err;

}

#endif

#if DT_NODE_HAS_PROP(DT_NODELABEL(nrf_radio_fem), cps_gpios)

/* Configure cps_gpios pin as active. */

err = gpio_pin_configure(

DEVICE_DT_GET(DT_GPIO_CTLR(DT_NODELABEL(nrf_radio_fem), cps_gpios)),

DT_GPIO_PIN(DT_NODELABEL(nrf_radio_fem), cps_gpios),

GPIO_OUTPUT_INACTIVE |

DT_GPIO_FLAGS(DT_NODELABEL(nrf_radio_fem), cps_gpios));

LOG_DBG("Configure cps_gpios pin as active.");

if (err) {

return err;

}

#endif

#if DT_NODE_HAS_PROP(DT_NODELABEL(nrf_radio_fem), crx_gpios)

/* Configure crx_gpios pin as active. */

err = gpio_pin_configure(

DEVICE_DT_GET(DT_GPIO_CTLR(DT_NODELABEL(nrf_radio_fem), crx_gpios)),

DT_GPIO_PIN(DT_NODELABEL(nrf_radio_fem), crx_gpios),

GPIO_OUTPUT_ACTIVE |

DT_GPIO_FLAGS(DT_NODELABEL(nrf_radio_fem), crx_gpios));

LOG_DBG("Configure crx_gpios pin as active.");

if (err) {

return err;

}

#endif

#if DT_NODE_HAS_PROP(DT_NODELABEL(nrf_radio_fem), ctx_gpios)

/* Configure ctx_gpios pin as inactive. */

err = gpio_pin_configure(

DEVICE_DT_GET(DT_GPIO_CTLR(DT_NODELABEL(nrf_radio_fem), ctx_gpios)),

DT_GPIO_PIN(DT_NODELABEL(nrf_radio_fem), ctx_gpios),

GPIO_OUTPUT_INACTIVE |

DT_GPIO_FLAGS(DT_NODELABEL(nrf_radio_fem), ctx_gpios));

LOG_DBG("Configure ctx_gpios pin as active.");

if (err) {

return err;

}

#endif

I also tried to control the pin status by using blinky_FreeRTOS_pca10056.emProject example but the result are the same. I am sure there's no issue on hardware.

Can you help me analysis what's the issue could be? Thanks a lot.

blinky_freertos.7z